Burner



April 30, 1929. F, w co'x 1,711,256

BURNER Filed April 21, 1927 4 Sheets-Sheet 2 Ig y I f F} I z IHIHHH I 10a; x J24 34 J9 1 ii I 18 H 36, J 5

JNZ/67ZIZZEV" -5 I My wMM /J W T" ag Ap 30, 1929. F. H. WILLCOX BURNERFiled April 21, 1927 4 Sheets-Sheet 3 mHWmWmm Inc/67%" f ederz'cic 0 2-ZUzZZcox @MWM April 1929. F. H. WILLCOX 1,711,256

BURNER Filed April 21, 1927 4 Sheets-Sheet 4 I jr derzck 0U JUZZZ I IPatented Apr: 30, 1929 UNITED, STATES PA 'lEN-T OFFICE.

'FREDERICK H. WIIJLCOX, OF CHICAGO, ILLIN'fiiS, ASSIGNOR TO FREYNENGINEERING COMPANY, OF CHIGAGQ, ILLINOIS, A CORPORATION OF MAINE.

BURNER.

Application med April 21,

relates to improved burners of the type suit- I able for gas firedboilers, blast furnace stoves, or the like. The presentinvention isillustrated and will be described in connection with burners of the typein which air is supplied under pressure and also of the type in whichthe air is aspirated by -the flow of gas.

v Anobject of the present invention is to provide a burner which willcause the desired commingling of the gas and air and which will provideventilatlon, whereby .the

.15 temperature of the burner may be kept down.

A further object is to provide a burner which may be very closelyassociated with the boiler, stove, orthe like, with which it cooperates,but which will not be overheated by said stove.

- A further object is to provide a burner for cooperation with a boiler,stove,'or the like, which will have the double advantage that the heattransfer from said boiler, stove, or the like, to said burner will beminimized and the burner will be maintained at a relativel' lowtemperature by the passage of air w ich may beat or near atmospherictemperature.

A further object is to provide a construction of burner "welladapted tomeet the needs of commercial operation. Further objects will appear asthe description proceeds.

Referrlng to the drawings- Figure 1 is a top plan view, artly in sec-'tion, of a burner embodying t e principles of the present invention,said view-being marked 1 1 in Figure 2;

Figure 2 is a View in elevation, partly in section, said view beingtaken along the line indicated by the arrows 2-2. of Figure 1;

Figure 3-is a sectional view taken alon the plane indicated by thearrow-s 33 0% Figure 1;

Figure 4 is a sectional view taken along the plane indicated by thearrows 4-4: of Fi ure 1;

- Figure 5 is a top plan view, partly in section, of a burn'ercomprising a modification of the burner disclosed'in Figures 1 to 4,inclusive, Figure 1 being a view taken taken along the planes indicatedby the line.

1927. Serial No. 185,370l

along the planes indicated by the arrows 5F of Figure 6;

F igure 6 is a view, partly in section, taken along the planes indicatedby the arrows 66 of Figure 5;

Figure 7 is a sectional view taken alon the planes indicated by thearrows 77 0 Figure 5; and v Figure 8 is a plan view illustrating adetail of constructlon.

Referring first to Figures 1 to 4, the numeral 10 indicates the burnerand the numeral 11 indicates the Wall of a boiler, hot blast stove orthe like with which said burner cooperates. In the claims forming partof this specification said boiler, stove or the like will-be referred toasa combustion housing. Said burner 10 is provided with the elongatedinlet portion 12, which inlet portion is adapted to be connected to thesupply pipe 13, which in a preferred installation supplies air to theburner '10. Said burner 10 is also provided with the elongated inletportion 14, which is adapted for connection to the supply pipe 15, whichin the installation above referred to is adapted to supply gas.lationship along'the burner 10 are a lurality of sets of walls 16'16,each of w ich walls is disposed in a vertical plane, the walls 16 16 ofeach set flaring slightly from the rear toward the front of sand burner.Said walls 16-16 of each set of walls are connected by the backwall 17,said walls 17-17' being spaced from the rear wall 18 of the burner,whereb to provide a passageway 19 for air. Sai air passes aroundthe backwall 17 and the converging walls 16--'16 of each set of walls into thepassageways 20. The gas inlet 14 communicates with the spaces 2121between the walls 16- -16 of each set thereof. Inasmuch as said walls16-16 provide an opening at their forward extremities, access is had atthe forward-extremities of said walls 16-16 between the gas and air,whereby commingling of said gas and air'may occur. posed in thev path ofthe gas entering through each of the pasasgeways 21 is the bafiie 22.Said baflies in the structure shown in Figure 1 are elliptical in shapeand are disposed symmetrically in the path of gas passing. through thepassageways '21. Said baffies 22 comprise hollow columns, pro

Disposed in spaced renected to a source of gas supply 29.

may be drawn into the hot blast stove by an aspirating action, the airpassing through said passageways 25-25 being used not only forcombustion, but for cooling the forward edge portion of the burner.

ommunication to the passageway 19 in rear of the walls 1717 iscontrolled by the closure members 2626, which may be held immovably inplace by nuts or other preferred holding means. The structure shown in'Figures 1 to 4, inclusive, does not show any control means for thesupply of gas or air, said controls being independent of the burnershown in said figures. In the practice of the present invention it willbe preferred to supply both gas and air under pressure.

Referring now to Figures 5 to 8, inclusive, a structure is illustratedwhich includes means for regulating the supply of air, the parts beingso arran ed that the air may be drawn into the hot last stove by theaspirating action of the flow of gas.

The burner 27 shown in Figures 5 to 8 includes the gas inlet portion 28which an elongated member adapted to be cloin; Y gas entering throu hthe inlet portion 28 engages the diverging walls 3030, which areconnected at the rear by the wall 31.

Said walls 3030 provide converging passageways 32 for the flow of gas. I

The burner 20 is provided with openings in its-top and bottom walls forthe admission of air, which openings communicate with the spaces betweenthe walls 30-30 of each set thereof. The passageways for air areindicated by the numerals 33-33. Baffles 34 are provided, symmetricallydisposed relative to the passageways 33, which bafiies are hollowcolumns for ventilating a1r, which passageways are open at the top andbottom of the burner. Said baflles 34 are illustrated as qua'dranglesarranged symmetrically about the axes of the passageways 33, saidquadrangles being disposed in position to provide the proper comminglingof air and gas and. to provide passageways for the commingled air andgas throu h the forward portion of the burner into t e hot blast stove.The burner illustrated in Figures 5 to 8 is provided with the spacingflanges 2 -24 providing the passageways 25, as described in connectlonwith Flgures 1 to 4, inclusive.

roviding passageways 35- The air inlet passageways to the passageways3333 are controlled by the valve plates 36 arranged at the twoextremities of said passageways 33-433. A valve plate suitable for theurpose is illustrated in Figure 8, said va ve plate being provided 1with the apertures 3737 and the closed portions 38. It will be clearthat the flow o't-air maybe controlled by the proper posi-.

ti'oning of said valve plates 3636 relative to the passageways. 33.According to the show- I ing of Figure 6,. the two valve plates 36-36are connected by lines 3939 to a lever 40 pivoted between said links..Movement of said lever will therefore control the position of thetwovalve lates 36 -36.

In both .modi cations oithe structure hereindescribed the bfafiiemembers indicated by the numerals 22 in Figures 1 to land hot blaststove, a further cooling action is had at that portion of the burnerwhich is in proximity to the hot blaststove. This cooling action is dueto the cooling air which 1 is drawn through the passageways 25'25 by theaspirating action of the entering gas and air. Furthermore, by reason ofthe fact that the physical contact between the burner and the stove isreduced to a minimum, the heat conduction from said stove to said burneris minimized.

the present-invention have been described in detail, may modificationswill occur to those skilled in the art. It is intended to cover allsuchmodifications that fall within the scope of the appended claims.

Whatis claimed is- 1. In a burner, in combination, an air inlet member,a gas inlet member, spaced walls within said burner providing alternatepassageways communicatingwith said air inlet member and said gas inletmember, and columns withinsaid burner providing vertieal passageways forthe flow of ventilating air through said burner, said columns beingdisposed in baffiing relationship with certain of said passageways tocause the commin-- let member, a gas inlet member, walls pr0- vidingpassageways communicating with Though certain preferredembodiments ofsaid gas and air inlet members and permitting communication between saidpassageways, and battle members comprising columns providing verticalpassageways through said burner, said vbaflie means being disposed'inbafliing relationship with certain of said passageways to cause thecommingling ofair and gas flowing through said passageways.

3. In combination, a combustion housing and a burner, said burner beingprovided with an air inlet member and a gas inlet member, means withinsaidburner providmg passageways commumcat ng with sald gas and air inletmembers, said passageways having a common exit reglon, and baflle meansin cooperative relationship with certain of said passageways, saidbaflle means comprising ventilators for cooling air, said burner beingdisposed Within the wall of said housing and having spacing flanges forspacing'said burner from said wall of said housing and for providingpassageways for cooling air'drawn into said housing by the aspiratingaction of the. air and gas de-- livered by said burner.

is i 4. In a burner, in combination, an air inlet member, a gas inletmember, spaced walls within said burner providing alternate passagewayscommunicating with said air inlet member and said gas inlet member, andcolumns within said burner providing pas, sageways for the flow ofventilating air through said burner, said columns being disposed inbafliing relationship with certain of said passageways to cause thecommingling of gas and air from said gas and air inlet members.

5. Ina burner, in combination, an air inlet member, a gas inlet member,Walls pro viding .passageways communicating with said gas and air inletmembers and permitting communication between "said passage-- -ways, andbaflle members com risin columns providing passageways t roug saidburner, said bafiie means being disposedin battling relationship withcertain of said passageways to cause the commingling of air and gasflowing through said passageways. I

6. 'A burner having a plurality of air inlets, a pluralityof gas inletsand a plurality of columns internally of said burner, said columnshaving their axes vertically disposed and being open to the atmosphereat their extremities to permit the flow of ventilating air therethrough,said columns being dis osed in baflling relationship with certain 0 saidinlets to cause the commingling of gas and air from said gas and aircolumns being disposed in baflling relation- 'ship'with certain of saidinlets to cause the commingling of gas and air from said gas and airinlets, said burner being disposed within a wall of said housing andhaving spaced flan es. for spacing said burner from said wall 0 saidhousing and for providin passageways for cooling air drawn into saiou'sing by the aspiratm action of the air and gas delivered by saiburner.

v Signed at Chicago, Illinois, this 18 day of April, 1927.

FREDERICK H. WILLCOX,

